From 64eb5ec86305e6547d5a7a37efda936584fbbafc Mon Sep 17 00:00:00 2001
From: 2gn <101851090+2gn@users.noreply.github.com>
Date: Thu, 30 Jun 2022 22:34:17 +0900
Subject: [PATCH 1/2] maintainer: add myself

---
 maintainers/maintainer-list.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 8a177be26d7c..c780d0e9dfd4 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -97,6 +97,12 @@
     github = "1000teslas";
     githubId = 47207223;
   };
+  _2gn = {
+    name = "Hiram Tanner";
+    email = "101851090+2gn@users.noreply.github.com";
+    github = "2gn";
+    githubId = 101851090;
+  };
   _3699n = {
     email = "nicholas@nvk.pm";
     github = "3699n";

From 47d35130e118eb160e967b505db9c3586e2be0cb Mon Sep 17 00:00:00 2001
From: 2gn <101851090+2gn@users.noreply.github.com>
Date: Thu, 30 Jun 2022 22:34:58 +0900
Subject: [PATCH 2/2] pngloss: init at unstable-2020-11-25

---
 pkgs/tools/graphics/pngloss/default.nix | 35 +++++++++++++++++++++++++
 pkgs/top-level/all-packages.nix         |  2 ++
 2 files changed, 37 insertions(+)
 create mode 100644 pkgs/tools/graphics/pngloss/default.nix

diff --git a/pkgs/tools/graphics/pngloss/default.nix b/pkgs/tools/graphics/pngloss/default.nix
new file mode 100644
index 000000000000..eafd77054e40
--- /dev/null
+++ b/pkgs/tools/graphics/pngloss/default.nix
@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub, pkg-config, libpng, zlib }:
+
+stdenv.mkDerivation rec {
+  pname = "pngloss";
+  version = "unstable-2020-11-25";
+
+  src = fetchFromGitHub {
+    owner = "foobaz";
+    repo = pname;
+    rev = "559f09437e1c797a1eaf08dfdcddd9b082f0e09c";
+    sha256 = "sha256-dqrrzbLu4znyWOlTDIf56O3efxszetiP+CdFiy2PBd4=";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [
+    libpng
+    zlib
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    install -D ./src/pngloss $out/bin/pngloss
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Lossy compression of PNG images";
+    homepage = "https://github.com/foobaz/pngloss";
+    license = licenses.mit;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ _2gn ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8ed604e43d89..4ecebe7f5717 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9370,6 +9370,8 @@ with pkgs;
 
   p0f = callPackage ../tools/security/p0f { };
 
+  pngloss = callPackage ../tools/graphics/pngloss { };
+
   pngout = callPackage ../tools/graphics/pngout { };
 
   patch = gnupatch;